دورية أكاديمية
The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3
| العنوان: | The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3 |
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| المؤلفون: | Kar, Uddipta, Singh, Akhilesh Kr., Hsu, Yu-Te, Lin, Chih-Yu, Das, Bipul, Cheng, Cheng-Tung, Berben, M., Yang, Song, Lin, Chun-Yen, Hsu, Chia-Hung, Wiedmann, S., Lee, Wei-Cheng, Lee, Wei-Li |
| المساهمون: | Ministry of Science and Technology, Taiwan |
| المصدر: | npj Quantum Materials ; volume 8, issue 1 ; ISSN 2397-4648 |
| بيانات النشر: | Springer Science and Business Media LLC |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Condensed Matter Physics, Electronic, Optical and Magnetic Materials |
| الوصف: | In a thin Weyl semimetal, a thickness dependent Weyl-orbit quantum oscillation was proposed to exist, originating from a nonlocal cyclotron orbit via electron tunnelings between top and bottom Fermi-arc surface states. Here, magneto-transport measurements were carried out on untwinned Weyl metal SrRuO 3 thin films. In particular, quantum oscillations with a frequency F s1 ≈ 30 T were identified, corresponding to a small Fermi pocket with a light effective mass. Its oscillation amplitude appears to be at maximum for thicknesses in a range of 10 to 20 nm, and the phase of oscillation exhibits a systematic change with film thickness. The constructed Landau fan diagram shows an unusual concave downward curvature in the 1/ μ 0 H n - n curve, where n is the Landau level index. From thickness and field-orientation dependence, the F s1 oscillation is attributed to be of surface origin. Those findings can be understood within the framework of the Weyl-orbit quantum oscillation effect with non-adiabatic corrections. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1038/s41535-023-00540-3 |
| الإتاحة: | https://doi.org/10.1038/s41535-023-00540-3Test https://www.nature.com/articles/s41535-023-00540-3.pdfTest https://www.nature.com/articles/s41535-023-00540-3Test |
| حقوق: | https://creativecommons.org/licenses/by/4.0Test ; https://creativecommons.org/licenses/by/4.0Test |
| رقم الانضمام: | edsbas.D032B82 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41535-023-00540-3 |
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